public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
System.Web.UI.Control instance = context.Instance as System.Web.UI.Control;
if (provider != null)
{
IDataEnvironment environment = (IDataEnvironment)provider.GetService(typeof(IDataEnvironment));
if (environment != null)
{
IWindowsFormsEditorService edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if ((edSvc != null) && (context.Instance != null))
{
if (this._connectionStringPicker == null)
{
this._connectionStringPicker = new ConnectionStringPicker();
}
string connectionString = (string)value;
ExpressionEditor expressionEditor = ExpressionEditor.GetExpressionEditor(typeof(ConnectionStringsExpressionBuilder), provider);
if (expressionEditor == null)
{
return(value);
}
string expressionPrefix = expressionEditor.ExpressionPrefix;
DesignerDataConnection currentConnection = GetCurrentConnection(instance, context.PropertyDescriptor.Name, connectionString, expressionPrefix);
this._connectionStringPicker.Start(edSvc, environment.Connections, currentConnection);
edSvc.DropDownControl(this._connectionStringPicker);
if (this._connectionStringPicker.SelectedItem != null)
{
DesignerDataConnection selectedConnection = this._connectionStringPicker.SelectedConnection;
if (selectedConnection == null)
{
selectedConnection = environment.BuildConnection(UIServiceHelper.GetDialogOwnerWindow(provider), null);
}
if (selectedConnection != null)
{
if (selectedConnection.IsConfigured)
{
((IExpressionsAccessor)instance).Expressions.Add(new ExpressionBinding(context.PropertyDescriptor.Name, context.PropertyDescriptor.PropertyType, expressionPrefix, selectedConnection.Name));
this.SetProviderName(context.Instance, selectedConnection);
IComponentChangeService service = (IComponentChangeService)provider.GetService(typeof(IComponentChangeService));
if (service != null)
{
service.OnComponentChanged(instance, null, null, null);
}
}
else
{
value = selectedConnection.ConnectionString;
this.SetProviderName(context.Instance, selectedConnection);
}
}
}
this._connectionStringPicker.End();
}
return(value);
}
}
string providerName = this.GetProviderName(context.Instance);
ConnectionStringEditorDialog form = new ConnectionStringEditorDialog(provider, providerName)
{
ConnectionString = (string)value
};
if (UIServiceHelper.ShowDialog(provider, form) == DialogResult.OK)
{
value = form.ConnectionString;
}
return(value);
}